Municipal sludge co-treatment method

A municipal sludge and co-processing technology, applied in biological sludge treatment, solid waste removal and other directions, can solve the problems of low organic matter content in municipal sludge, failure to start operation, slow digestion process, etc. Conducive to comprehensive utilization and the effect of reducing oil concentration

Active Publication Date: 2020-12-18
江苏泓润生物质能科技有限公司
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Problems solved by technology

However, compared with other organic wastes, the organic matter content of municipal sludge is low, and anaerobic digestion alone generally has the problems of low carbon-nitrogen ratio and low gas production rate.
Other municipal organic wastes have a high content of organ

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  • Municipal sludge co-treatment method

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[0058]The present invention will now be described in further detail with reference to the drawings. These drawings are all simplified schematic diagrams, which merely illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

[0059]The technical solutions provided by the present invention are as follows:

[0060]1. A method for co-processing municipal sludge: It is characterized in that it comprises the following steps:

[0061]1) Determine the types and corresponding carbon-nitrogen ratios of municipal organic waste participating in the co-processing of municipal sludge;

[0062]2) According to the formula C=(A0B0+A1B1+A2B2+…+AnBn) / N(1)

[0063]Determine the corresponding treatment volume of municipal sludge and urban organic waste;

[0064]among them,

[0065]C is the best anaerobic digestion carbon to nitrogen ratio;

[0066]A is the corresponding processing capacity of each organic matter;

[0067]B is the correspondi...

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Abstract

The invention relates to a municipal sludge co-treatment method. Municipal sludge and one or more urban organic wastes are subjected to synergistic anaerobic digestion, and various benign complementation can be established between the municipal sludge and the organic wastes and between the organic wastes while the municipal sludge and one or more urban organic wastes are subjected to the synergistic anaerobic digestion; for example, the concentration of heavy metals in the sludge and the concentration of salt in the organic waste can be diluted through co-digestion of municipal sludge and municipal organic waste, the inhibiting effect of toxic substances on anaerobic microorganisms in the anaerobic digestion process is reduced, the concentration of oil in a digestion substrate is reduced,and the risk of oil particle formation is reduced; municipal organic waste and municipal sludge are co-digested, so that nutritional ingredients lacking in respective ingredients can be mutually supplemented, and the carbon-nitrogen ratio of a digestion substrate is adjusted to an appropriate range of anaerobic digestion; compared with single treatment, the urban organic waste and the municipal sludge are co-digested, so that the capital construction and operation cost can be reduced, and better economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of an environmental protection treatment method for urban organic waste and domestic sludge, in particular to a municipal sludge collaborative treatment method. Background technique [0002] With the development of the economy and the improvement of people's living standards, the municipal sewage industry is also facing increasing pressure. The amount of domestic sewage is increasing, and more and more domestic sludge is brought. [0003] Traditional municipal sludge treatment methods mainly include incineration, filling, land use, anaerobic digestion and other methods. The cost of using the incineration method is too high, and the resource utilization rate is low; the landfill method has gradually lost land to be buried in today's land shortage; and the land use also has problems such as poor paths. [0004] Research in the United States in 1989 showed that for a certain scale of sewage treatment plants, a...

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Application Information

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IPC IPC(8): C02F11/04B09B3/00B09B5/00
CPCC02F11/04B09B3/00B09B5/00
Inventor 曹波皇甫月月杨晶歆
Owner 江苏泓润生物质能科技有限公司
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